Oswald fritzsch



(No Model.)

O. PRITZSCH.

METHOD 0F MANUFACTURING PEARL RIBBONS.

No. 473,309. Patented Apr. 19, 1892.

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NITED STATES ATENT OFFICE.

OSVALD FRITZSCH, OF ANNABERG, GERMANY.

SPECIFICATION .forming part of Letters Patent No. 473,309, dated April19, 1892.

Application filed September 22, 1890. Serial NoI 365,856. (Nospecimens.) Patented in Germany April 2'7, 1890, No. 53,962; in FranceMay 8, 1890, No 205,554; in England May 23, 1890, No. 8,094, and inAustria-Hungary November 2, 1890, No.

20,375 and No. 37,827.

To all whom t may concern# Beitknown that LOsWALD FRITZscH, asubject ofthe King of Saxony, and a resident of Annaberg, in the Kingdom ofSaxony, German Empire, have invented a new Method of Manufacturing PearlRibbons, (for w-hich- I have obtained patents in Germany, No. 53,962,dated April 27, 1890; in Austria-Hun-l gary, No. 20,375 and No. 37,827,dated November 2, 1890; in France No. 205,554., dated May 8, 1890, andin Great Britain, No. 8,094, dated May 23, 1890,) of which the followingis a full, clear, and exact specification.

My invention relates to a new method of manufacturing pearl ribbons, inwhich a thread bearing the pearls is used; and the object of myinvention is to attach this thread on a ribbon in such a manner that thepearls are arranged in separate series, so as to get parallel series ofpearls by those parts of the thread which are filled with pearls, and toconnect said parallel series of pearls by those parts of the threadswhich are empty of pearls, said empty parts being also ofparallelposition, the whole th read being fixed to the cordon or cordonsby stitches through or across the latter.

Pearl ribbons made according to the old method show no regular site ofthe pearls amongone another. It is directly the essential purpose ofthis invention that every pearl shall be in regular site to all thosewhich surround it. They may be arranged either singly or in rows of two,three, four, or more pieces.

The manufacture of such pearl ribbons and cordons is effected in amanner as follows: A thread supplied with pearls in usual manner is laidupon or around the ground cordons and fastened by a stitch made throughthe middle of the cordons. That thread with pearls, however, thoughfilled with them as usually, is not applied as usually, but preparedbefore in such a manner as to be alternately full of pearls and empty ofthem, so that parts with pearls and parts without them change perfectlyregular, it being made possible thereby to have all those parts of thethread which are full of pearls laid in the same direction and get aregular position of all the pearls relative to one another, while allthose parts which are empty of pearls form a passagefrom one row to theother or the junction between two consecutive rows.

Four sorts of such pearl ribbons or cordons and a machine formanufacturing them are represented in the accompanying drawings, inwhich similar letters denote similar parts throughout the differentviews, and in which- Figure l is a side view of the machine, partly insection. Figs. 2 to 5 are the four different executions of the newribbon.

The machine, which in the Whole may be modified in every imaginable way,possesses, however, two mechanisms which are indispensably requisiteandof greatest importance for executing the proceeding in correctmanner. These mechanisms consist, first, in a guide b2, moved to and frofor the purpose of carrying the thread to the left and right side, and,secondly, i-n a distributing-regulator for the pearls, allowing them toglide down on the threadonly alternately and in equal quantities. Thatregulator is formed by two arms b3 b4, which are fixed to the frame ofthe machine. The horizontal parts of these arms are of fork-like shape,and when seen from above have a curvature, according to the movement ofthe end of guide b2. Thisguide is secured to the under extremity of ashort shaft b', which is alternately turned in opposite directions bythe machine. The end of the guide has a hole through which the pearlthread is put and by which it is moved to and fro from one fork to theother. Said forks are in different height, the slits in them only aswide as to allow a' passage of the thread itself, but keeping back thepearls above these parts. y

The pearl thread b to be secured to the ground-cordon a at the left sideand guide b2 oscillate from the left to the right. The pearls which werekept back before by the upper fork b3 will now fall down upon the underfork b4. At that time a catch u, moved by the machine automatically inany way, is

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Obvious that a definite number of pearls is now separated from theothers, according to the difference in height between both the forks.Those pearls between the forks will become free as soon as theretrograde motion of the guide from the right to the left proceeds,falling down and collectingl over and around the basecordon a. Allremaining pearls are carried then again by the upper fork b3, asformerly. As soon as the retrograde motion of guide b2 has beencompleted another catch u is moved downward, and the thread on thecordon is fastened now by a stitch of needle /r directly through themidst of the cordon. The needle having made the stitch and goneback intoits normal position, a complete operation is finished and both thecatches are moved upward again. Guide b2 performs again a right-handmovement, and the same operation as described above is re peated. Thisis done continuallyin perfectly regular manner, while the guide as wellas the catches and needle are operated by the ma chine.

In order to vary the number of pearls which are intended to form a row,according` to the thickness of the cordon or breadth of the ribbon, theforks Ui b4 may bearranged so as to allow an alteration of the verticaldistance between them.

I will hereunto add a description of the machine shown in Figzl andexplain how the sameworks. The pearl thread h, wound upon the roll n,passes first the guide b2 and afterward the two arms b3 and b". Theoscillation of the guide b2 is effected by means of the crank lc, thishaving its seat upon the saine axis 7)' as the guide b2. A rod 7a4,sliding in two bearings 7t15,is connected at one side with the crank7s', the gudgeon 7a2 of that crank 7s' sliding in a slot provided at theend of the rod 7a4. The rod 7.11 is moved by a gudgeon 7e, sliding in anoval groove of the disk-wheel 757, thus causing an alternate motion ofthe rod 71:4 and an oscillating motion of the guide b2, in extentaccording to the shape of the oval groove. The disk-wheel 7.:7 isfastened to axis 7.18, a rotary motion heilig imparted to the same bythe conical wheels 7s" and by the main shaft 7am. Two ovaldisk-wheels7i:11 and 7.92, secured to shaft 7f3, serve to set inalternate motion two rods 7tlg and la, which are under the pressure ofsprings, so as to go back again when they have been pushed forward bythe disk-wheels 7c and 7]2. The rods 7613 and 7.51 act upon the catchesu and a in such a manner that in proper time the working of the same iseffected, as hereinbefore described.

For further explanation of the machine I remark that an advance of thewheel a2, around which the base-cordon a is placed, must be effectedafter every stitch of the needle. As indicated in Fig. l, such motion isperformed by the connecting-rod Z, the twoarmed lever Z being turnedthereby. This lever Z bears a pawl Z2, imparting a periodic movement tothe ratchet-wheel Zi in wellknown manner, thus moving the axis 7, whichbears said wheel a2.

Shaft Z in the drawings is intended merely to indicate the manner ofmoving the shuttle in case that double-lock stitch be applied.

Ilaving thus fully described the nature of my said invention, what Idesire to secure by Letters Patent of the lUnited States is l. 'lhemethod of manufacturing pearl ribbons, consisting in applying a threadalternately full of pearls and empty of them to a cordon or ribbon or toseveral parallel cordons in azigzag course, so as to get parallel seriesof pearls by those parts of the thread which are filled with pearls, andto connect said parallel series of pearls by those parts of the threadwhich are empty of pearls, as described.

2. The method of manufacturingpearl ribbons, consisting in applying athread alternately full of pearls and empty of them in equal distancesto a cordon or ribbon or to several parallel cordons in a zigzag course,so as to get parallel series of pearls by those parts of the threadwhich are filled with pearls, and to connect said parallel series ofpearls by those parts of the thread which are empty of pearls, saidempty parts heilig also of parallel position, the whole thread beingfixed to the cordon or cordons by stitches through or across the latter,as described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

OSWAIJD FRI'IZSCI'I.

IVitnesses:

CARL Weiss, 'Fir-niaonren SPULING.

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